Question

For example, I would like to do something like the following in java:

int[] numbers = {1,2,3,4,5};
int[] result = numbers*2;
//result now equals {2,4,6,8,10};

Is this possible to do without iterating through the array? Would I need to use a different data type, such as ArrayList? The current iterating step is taking up some time, and I’m hoping something like this would help.

Answer 1

No, you can’t multiply each item in an array without iterating through the entire array. As pointed out in the comments, even if you could use the * operator in such a way the implementation would still have to touch each item in the array.

Further, a different data type would have to do the same thing.